Worked well knocking down offset driveway cracks, but you definitely want to wear a mask if not a respirator and certainly safety glasses, gloves and a long sleeve shirt & pants

This is a great cup wheel, put it right on par with the DeWalt wheels from the box stores except and a greatly reduced price. It's neither super aggressive or useless. Good middle ground wheel.

The wheel worked extremely well for grinding the surface of 4000 psi concrete. It cuts fairly fast, rocks and all. Although it is priced in line with other diamond wheels, I wished it was a little cheaper. But, that could be said about most things :-)My wheel was balanced and had no significant vibration.

I used this in a 4-1/2" makita grinder to grind a poured concrete fountain at the edges and some surfaces. The fountain needed to be perfectly level at the edges and I wanted an exposed aggregate finish. This cutter did the job. Great quality.

Using this with Makita grinder and dust cover connected to a shop vacuum. Its pretty decent. After about 100 sq feet of concrete grinding there is a bit of wear on the tips of the blades, but otherwise its pretty much in same condition. If you want more aggressive grinding get the 24 blade version. This one grinds pretty well but is on a more gentle side. Good for taking off epoxy with 1-2mm of concrete top surface. Can be used to flatten around cracks or uneven quick cement.

Here in Mexico, things are built, in part, "to the eye". if it looks good, it's done. I'm planning to add windows in a portal that was totally open to the wind, so added a low wall. Now that I want windows, I framed in where they will go. Only problem: one side drops about an inch more than the other. I tried cutting discs, grinding disk on my 7' grinder to no avail.Saw this item on Ebay and took a chance. Pre-threaded in 5/8", it is the size and thread for my 7 inch makita grinder. same…

Had a cracked basement floor that developed high spots. Grinding wheel made light work of the high spots. I did a lot of Grinding and wheel shows very little wear. Excellent product.

The EDiamond 7 inch 24 segment grinding wheel #30/40 diamond grit made the job of leveling our uneven concrete sidewalk seams even again. No guests tripping on the sidewalk at our house thanks to EDiamond! The hardest part is that we're old, 75 & 83 and it's not easy on our knees, even with yard cushions to lean on. Took about 2 hours to grind 40 feet level and this wheel on our Makita GA7021 7" Angle Grinder, with AC/Dc Switch. Worth every penny! Thanks Ebay for next day delivery!

Picked this up to do a crash course in finishing my basement floor, doing epoxy. Prep work is 90% of the work and wanted to make sure i had nothing showing through the epoxy. Hooked this up with the shop vac and got to work. Took most of the day to clear up my 1000 sq ft project, and very happy with the results. This tool will go up on the wall for later use as it's still in great working condition.

I order this and a shroud to flatten the bottom of some concrete countertops and am very pleased with the results. So much better and faster then the other masonary grinding wheels.

Did 2 four foot sections of sidewalk. Sidewalk had dropped about 1 1/2 inches. Put a decent slope on both sections. Used a 4 inch and 7 inch grinder. Took about 1 1/2 hours and used up 1/2 of grinder teeth.

Ground down several roots in the backyard, no issues with this product. I didn't think the blade would withstand the heavy grinding but it still works like brand new after heavy use.

I like threaded grinding wheels for bigger grinders in the 7-9" sizes for safety reasons. This brand did well on harder concrete with a 9" heavy duty milwaukee 6500rpm grinder. I would give it five stars if they had different bond choices for the different concrete hardness that is out there.

I an not attest to the durability of the wheel. The fit and finish of the wheel looked of high quality. Unfortunately, I never used the wheel as I could not find any information regarding the maximum RPM the wheel could be used at. My angle grinder operates at 8500 RPM and is NOT variable That said I returned the wheel through Ebay due potential safety issues. I would consider purchasing the wheel if there was information stamped regarding maximum RPMs the wheel can be used at.Thank you.

I had a basement floor with epoxy that I needed to grind. This grinder is able to cut through the epoxy and does great on the exposed concrete. The epoxy slows down the grinding process some but overall I’m happy, this wheel takes care of both the epoxy and concrete.

I had to remove some big bumps in the concrete floor in my basement that the refurb guys left when they replaced the stairs.Sure even with a shroud made a ton of dust , but with my Dewalt angle grinder this thing ate though the bumps , job done in about 30 mins total.

Like other reviews mention,get some sort of mask or respirator.I used this on a 3ft x 6ft addition I added to our patio.I made the mistake of making it very course and it had rocks sticking up to add traction.It was to the point you couldn't step on the slap without shoes it was so bad.I bought this and in about 20 minutes the slab was smooth.It does kick up a lot of dust and debris, so a face shield would be i deal with a n95.

This worked good for my use which was to grind down some high spots on my basement floor where the previous owner added a drain pipe in the floor. Only thing bad was a lot of dust. I also had on a dust shield for the shop vac , but the one I had went right back to Ebay because it was useless as far as pulling any dust. Just be careful with this because it removes the material fast!

I had some rough spots and trowel marks and embedded rocks on my slab that had to be removed before bolting down the walls.Went around the edges with this wheel on my 4 1/2 grinder and it took down the high spots quickly and easily. The wheel is still in good shape with very little wear.

I had to level and resurface a concrete patio. This was great for preparing 200 sq ft of concrete to be resurfaced. Grinding down anything more than 1/8” with this and a hand grinder is a bit much, but not because of this cup. I tried it out because it was a little bit cheaper than the ones with tool manufacturer branding, and I’m glad I did as a DIYer.